<template>
  <div class="icons">
    <swiper :options="swiperOption">
      <swiper-slide v-for="page of pages" :key="page.id">
        <div class="icon"  v-for="item of page" :key="item.id">
          <div class="icon-img">
            <img class="icon-img-content" :src="item.imgUrl">
          </div>
          <p class="icon-desc">{{item.desc}}</p>
        </div>
      </swiper-slide>
    </swiper>
  </div>
</template>

<script>
export default {
  name: 'HomeIcons',
  props: {
    iconList: Array
  },
  data  () {
    return {
      swiperOption: {
        autoplay: false
      }
    }
  },
  computed: {
    'pages'  () {
      const pages = []
      this.iconList.forEach((item, index) => {
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    }
  }
}
</script>

<style lang="stylus" scoped>
  @import '~styles/var.styl'
  @import '~styles/mixins.styl'
  .icons >>> .swiper-container
    height 0
    padding-bottom 50%
    .icon
      position relative
      float left
      height 0
      width 25%
      padding-bottom 25%
      .icon-img
        overflow hidden
        position absolute
        top:0
        left:0
        right:0
        bottom .44rem
        box-sizing border-box
        padding .1rem
        .icon-img-content
          height 100%
          display block
          margin: 0 auto
      .icon-desc
        position absolute
        left:0
        right:0
        bottom 0
        line-height:.44rem
        height:.44rem
        text-align center
        color: $darkTextColor
        ellipsis()
</style>
